# Chi Square

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Statistical test that explains if deviations from the standard are due to random errors.

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The solution addresses - Statistical test that explains if deviations from the standard are due to random errors.

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Ex. Phenotypes: RR is red

R'R is purple

R'R' is white

If you cross: R'R * R'R

Theoretical > 1 red:2 purple:1 white

Actual > 98:276:100

1:2.7:1

Is the phenotypic variation due to chance?

Phenotype Observed Expected (O - E)^2

expected

Red ...

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